The long-awaited third collaboration by popular author Kuroneko Smith! Aunt Kyoko and her nephew Kohei end up having a physical relationship. She accepts her inexhaustible sexual desire, which leads to creampie, pregnancy and childbirth. About a year later...Kohei visits his aunt's house for the first time in a long while. Kyoko is more beautiful and sexy than ever, and Kohei's lust is at its limit. He tries to force a relationship with her as before, but Kyoko, now a mother, refuses and advises her nephew to forget about the past. However, he cannot suppress his youthful and swollen sexual desire, and he continues to forcefully ejaculate inside her...